Fault diagnosis apparatus and method for hot fine rolling band steel

A technology for fault diagnosis and hot finishing, which is used in metal processing equipment, metal rolling, metal rolling, etc.

Inactive Publication Date: 2004-06-09
POHANG IRON & STEEL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0016] This prior art patent, like the aforementioned prior art patent, simply utilizes thresholds and thus cannot perform comprehensive fault diagnosis

Method used

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  • Fault diagnosis apparatus and method for hot fine rolling band steel
  • Fault diagnosis apparatus and method for hot fine rolling band steel
  • Fault diagnosis apparatus and method for hot fine rolling band steel

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Embodiment Construction

[0036] The drawings are described below, wherein the same or similar components are denoted by the same reference numerals in different drawings.

[0037] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0038] Figure 1a , Figure 1b and figure 2 Shown is a flow chart of a method for diagnosing a fault in hot finish rolling of a strip according to a preferred embodiment of the present invention, which will be described in detail below.

[0039] refer to Figure 1a and 1b , the hot finish rolling fault diagnosis method of the strip proposed by the present invention includes the following algorithms.

[0040] In step S101, after reading the values ​​set according to the rolling conditions such as target thickness, target load, roll speed and roll gap from the monitoring computer (SCC) setting unit 210, it is determined whether the The thickness signal of the rolled plate 203 is applied by the si...

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PUM

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Abstract

The present invention relates to an apparatus and method for diagnosing faults in hot strip finishing rolling, which diagnoses thickness faults in hot strip finishing rolling, using preset data and real-time data on rolling and control conditions, equation models representing control and physical phenomena and a database constructed based on operation experiences.The present invention comprises: a Supervisory Control Computer (SCC); an actually measured data collection unit; an exit side thickness gauge loaded-on determination unit; a part identification unit; an on-gauge ratio calculation unit; a primary fault determination unit; a secondary fault determination unit; and a confidence rate evaluation unit.

Description

technical field [0001] The present invention relates to a fault diagnosis equipment and method in the hot finish rolling of strip steel, in particular to a fault diagnosis equipment and method in the hot finish rolling of strip steel, which utilizes preset data and real-time data of rolling and control conditions, Equational models representing the governing and physical phenomena and a database constructed based on operating experience to diagnose thickness defects in hot-finish strip rolling. Background technique [0002] At present, in the field of strip steel hot finish rolling, the quality requirements of products are getting higher and higher, and small batch production is becoming a production method, so a higher precision quality control system is urgently needed. [0003] Using various computers and control systems, the production of hot-rolled products can be stably performed under high-precision control, so that quality accuracy can be guaranteed. However, when t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B37/18B21B1/26B21B37/00B21B37/16B21C51/00G05B23/02
CPCB21B37/165G05B23/0235G05B23/02
Inventor 朴哲载洪盛喆金宽洙韩奎凡曹永俊崔承甲若宫宣范新田勤子井波治树
Owner POHANG IRON & STEEL CO LTD
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